static, constantKEYDOWN :String

Channel Constant for pressing a binded key
Data passed : {String} user-defined action, {Number} keyCode,
{Boolean} edge state
Edge-state is for detecting "locked" key bindings. When a locked key
is pressed and held, the first event will have the third argument
set true. Subsequent events will continue firing with the third
argument set false.

static, constantVIEWPORT_ONCHANGE :String

static, constantVIEWPORT_ONRESIZE :String

Channel Constant for when the viewport is resized
(this usually follows a WINDOW_ONRESIZE event, when using the flex scaling mode is used and after the viewport was updated).
Data passed : {Number} viewport width
Data passed : {Number} viewport height